They're all so cute! What's up with Marble's markings? It really does look like she's marbled! lol At first glance I thought she might be variegated. 
You're right that if a mouse has white a tail tip or headspot or white toes, it probably carries recessive white spotting. Not always, though.
You're right that if a mouse has white a tail tip or headspot or white toes, it probably carries recessive white spotting. Not always, though.